1. the molecule that is most directly used to power different cell activities is a. glucose...
TRANSCRIPT
1. The molecule that is most directly used to power different cell activities is
A. GlucoseB. SucroseC. ATPD. ADP
Gluco
se
Sucrose ATP
ADP
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2. How is an ATP molecule different from an ADP molecule?
A.The two molecules have a different sugar
B.The two molecules have a different nitrogen group
C.ADP has 2 phosphate groups, ATP as 3 phosphate groups
D.ATP has 2 phosphate groups, ADP as 3 phosphate groups
The two m
olecules h
ave a...
The two m
olecules h
ave a...
ADP has 2 phosp
hate gr..
.
ATP has 2
phosphate gr..
.
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ATP stands for adenosine triphosphate. The tri in the name tells you that it has a 3 phosphate group tail. The triphosphate tail is an important part of the molecule because it store energy in this high energy bond.
ADP stands for adenosine diphosphate. This molecule has 2 phosphate groups in its tail.
3. A reaction in which the products have more energy then the reactants, requiring an input of energy is called a(n)
A.ExergonicB.EndergonicC.SpontaneousD.Dissociation
Exerg
onic
Endergonic
Spontaneous
Dissocia
tion
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An endergonic reaction requires energy. (The prefix “endo” means into)• The products have more stored energy than the
reactants• Example: The production of glucose from carbon
dioxide and water requires energy (from the sun)
4. The reaction that produces an ATP from an ADP and a phosphate group is a(n)
A. exergonicB. endergonic
exergo
nic
endergonic
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ATP is a high energy molecule, with energy stored in the bond for the third phosphate group. It takes energy to produce an ATP from ADP and a phosphate group so this is an endergonic reaction.
5. The energy required to build an ATP molecule in the ATP/ADP cycle can come from
A. The building of a sugar molecule
B. The breakdown of a sugar molecule under anaerobic conditions
C. The breakdown of a sugar molecule under aerobic conditions
D. A, B and CE. Both B and C
The building of a
sugar m
...
The break
down of a su
g..
The break
down of a
sug..
A, B and C
Both B and C
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6. The energy released by the break down of ATP into ADP and a phosphate group may be used for
A.Movement (allowing contraction of muscle fibers)
B.Synthesizing (building) macromolecules- such as proteins
C.Active transport of substances
D.All of the aboveE.None of the above
Move
ment (allo
wing con...
Synth
esizing (b
uilding) ..
.
Active
transp
ort of s
ubst...
All of t
he above
None of the ab
ove
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ATP is the energy currency of the cell. The energy released in the break down of ATP is used to power many cellular activities.
There is a constant cycling in the cell as ATP is produced from ADP and P with the energy provided from the breakdown of food. Energy is released for cell activities as ATP is broken back down into ADP and P
7. The reactants in photosynthesis are
A.carbon dioxide (CO2) & oxygen (O2)
B.carbon dioxide (CO2) & glucose (C6H12O6
C.carbon dioxide (CO2) & water (H2O)
D.oxygen (O2) & glucose (C6H12O6)
E.water (H2O) & glucose (C6H12O6)
carb
on dioxide (C
O2) & ...
carb
on dioxide (C
O2) & g.
..
carb
on dioxide (C
O2) & ...
oxyge
n (O2) &
gluco
se (..
.
water (H2O) &
glucose
(...
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8. The products of photosynthesis are
A.carbon dioxide (CO2) & oxygen (O2)
B.carbon dioxide (CO2) & glucose (C6H12O6)
C. carbon dioxide (CO2) & water(H2O)
D.oxygen (O2) & glucose (C6H12O6)
E.oxygen (O2) & water (H2O)
carb
on dioxide (C
O2) & ...
carb
on dioxide (C
O2) & ...
carb
on dioxide (CO2) &
...
oxyge
n (O2) &
gluco
se (..
.
oxyge
n (O2) &
water (
H2O)
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9. The term aerobic means
A.with oxygenB.without oxygenC.with waterD.without water
with oxyg
en
without o
xyge
n
with w
ater
without w
ater
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10. Which of the following is an anaerobic process (occurs without oxygen)?
A. Kreb’s Cycle and electrons transport chainB. Lactic acid fermentationC. Alcohol fermentationD. A and BE. A and CF. B and C
Kreb’s
Cycle an
d electrons..
.
Lacti
c acid
ferm
entation
Alcohol fe
rmenta
tion
A and B
A and C
B and C
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11. Which process occurs in our muscles when we work out very hard (demanding lots of ATP) and our circulatory system can not deliver an adequate amount of oxygen to meet the demands (anaerobic conditions).?
A. Kreb’s cycleB. Lactic acid fermentationC. Alcohol fermentationD. Both B and C
Kreb’s
cycle
Lacti
c acid
ferm
entation
Alcohol fe
rmenta
tion
Both B and C
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12. Name an organism that can perform alcohol fermentation.
A. YeastB. Grape plantsC. HumansD. All of the aboveE. A and BF. A and CG. B and C
Yeast
Grape plan
ts
Humans
All of t
he above
A and B
A and C
B and C
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13. Glycolysis is the process in which a glucose molecule is broken down into 2 pyruvate molecules and the energy released is used to produce 2 ATP molecules. Glycolysis is the first phase in which of the following
A. Fermentation (both kinds)
B. Aerobic respirationC. Both A and BD. Neither A nor B
Ferm
entation (both
kinds)
Aerobic
resp
iration
Both A and B
Neither A
nor B
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14. Flasks A and B both contain a yeast solution and are under anaerobic conditions. Flask A also contains glucose, flask B does not contain glucose. You would expect the amount of ATP to
A. Increase in both flasksB. Decrease in both flasksC. Increase in flask A but not
flask BD. Increase in flask B but not
flask A
Increase
in both
flasks
Decreas
e in both
flasks
Increase
in flask
A b
ut no...
Increase
in flask
B but not..
.
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Yeast can perform anaerobic fermentation to produce ATP, but they require a food source- glucose etc.
15. Flasks C and D both contain yeast, and a glucose solution. Flask C has no O2 and flask D has O2. You would expect a decrease in glucose ____
A. in both flasksB. in flask C but not DC. in flask D but not CD. neither (glucose will
increase in both)
in both flask
s
in flask C but n
ot D
in flask D
but not C
neither (
glucose
will
inc...
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Yeast are an organism that can perform both aerobic respiration and anaerobic alcohol fermentation. They will be able to breakdown the sugar molecules for energy under both conditions.
16. Flasks E and F both contain yeast, and a glucose solution. Flask E has no O2 and flask F has O2. You would expect
A. More ATP production in flask E
B. More ATP production in flask F
C. More ATP consumption in flask E
D. More ATP consumption in flask F
More A
TP producti
on in f..
.
More A
TP producti
on in f..
.
More A
TP consu
mption in...
More A
TP consu
mption in...
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17. The site of aerobic respiration is the
A.ribosomeB.endoplasmic reticulumC.chloroplastD.mitochondrion
riboso
me
endoplasmic
reticu
lum
chloro
plast
mitoch
ondrion
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18. Which of the following are differences between fermentation and aerobic respiration.
I. aerobic respiration requires oxygen, fermentation does notII. fermentation requires oxygen, aerobic respiration does notIII. Fermentation produces more ATPIV. aerobic respiration produces more ATP
A. I onlyB. II onlyC. I and IIID. I and IVE II and IIIF. II and IV
I only
II only
I and III
I and IV
E II and III
F. II
and IV
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19. A process requires the energy from 5 ATP in order to be initiated, but produces 12 ATP in the later stages, the net yield of ATP is
A. 60B. 17C. 12D. 7E. 5
60 17 12 7 5
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